strong {
  display: inline-block;
  color: #fff;
  background-color: lightpink;
  padding: 0 10px;
  margin-bottom: 10px;
}
strong::before {
  content: "小标题：";
  margin-right: 5px;
}

#dyna-com {
  border: 1px solid aquamarine;
  padding: 10px 20px;
  margin: 10px;
  width: 600px;
  display: flex;
  flex-direction: column;
}

#dyna-com * {
  margin: 0;
  padding: 0;
}
#dyna-com ul {
  list-style: none;
  width: fit-content;
}
#dyna-com ul > li {
  display: block;
  color: gray;
  background-color: #ddd;
  width: 100px;
  margin-bottom: 5px;
  margin-right: 20px;
  text-align: center;
}
#dyna-com ul > li.activedNavSub {
  color: #fff;
  background-color: lightpink;
}
#dyna-com div.nav {
  display: block;
  padding: 10px 0;
  width: fit-content;
} 
#dyna-com div.nav > span {
  display: inline-block;
  padding: 0 5px;
  font-size: 1.2em;
  color: gray;
  background-color: #ddd;
  margin-right: 5px;
}
#dyna-com div.nav > span.activedNav {
  color: #fff;
  background-color: rgb(83, 211, 211);
}
#dyna-com div.nav-container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
#dyna-com div.nav-container div.nav-content {
  /* border-left: 3px solid #ddd; */
  padding: 10px 20px;
  color: gray;
  background-color: #ddd;
}
